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Topic 3 · Rules of the Road: Traffic Laws in California

Braking distance grows as your speed increases because:

Why

Both the reaction distance and the braking distance grow with speed, which is why speed is one of the most common causes of collisions. (Section 6, Braking.)

Practise this in the real format

Reading one answer is not the same as sitting the test. The simulator runs the first-time adult form: 36 questions, 6 mistakes allowed, 83% to pass.

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Source: California Driver's Handbook (DL 600, rev. 6/2025), the document the DMV writes the real test from. Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.

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